United States Lime (USLM) director exercises options for 3,405 shares

Rhea-AI Filing Summary

UNITED STATES LIME & MINERALS INC director Antoine M. Doumet reported an options exercise. He exercised stock options covering 3,405 shares of USLM Common Stock at $110.00 per share, receiving an equal number of shares. No shares were reported as sold in this filing.

After these transactions, Doumet holds 110,000 shares of USLM Common Stock directly. The exercised options had an exercise date of May 1, 2026 and an expiration date of May 1, 2036, and there are no remaining derivative positions shown, indicating an exercise-and-hold pattern.

Insider Trade Summary

3,405 shares exercised/converted

Mixed 2 txns

Insider DOUMET ANTOINE M

Role null

Type	Security	Shares	Price	Value
Exercise	Stock Option (right to buy)	3,405	$110.00	$375K
holding	USLM Common Stock	--	--	--

Holdings After Transaction: Stock Option (right to buy) — 3,405 shares (Direct, null); USLM Common Stock — 110,000 shares (Direct, null)

Footnotes (1)

Key Figures

Options exercised: 3,405 shares Exercise price: $110.00 per share Shares held after: 110,000 shares +1 more

4 metrics

Options exercised 3,405 shares USLM Common Stock underlying options exercised on May 1, 2026

Exercise price $110.00 per share Stock Option (right to buy) for USLM Common Stock

Shares held after 110,000 shares USLM Common Stock directly owned after reported transactions

Option expiration May 1, 2036 Expiration date of exercised stock options before exercise

Key Terms

Stock Option (right to buy), derivative security, USLM Common Stock

3 terms

Stock Option (right to buy) financial

"security_title: "Stock Option (right to buy)""

derivative security financial

"transaction_code_description: "Exercise or conversion of derivative security""

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

USLM Common Stock financial

"underlying_security_title: "USLM Common Stock""

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

DOUMET ANTOINE M

(Last) (First) (Middle)

5429 LBJ FREEWAY

SUITE 230

(Street)

DALLAS TEXAS 75240

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
UNITED STATES LIME & MINERALS INC [ USLM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
USLM Common Stock								110,000	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (right to buy)	$110	05/01/2026		M		3,405		05/01/2026	05/01/2036	USLM Common Stock	3,405	$110	3,405	D

Explanation of Responses:

	\s\ Antoine Doumet	05/04/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider activity did Antoine M. Doumet report at USLM?

Antoine M. Doumet reported exercising stock options for 3,405 USLM Common Stock shares at $110.00 per share. This increased his direct shareholdings, with no corresponding sale transactions disclosed in the same filing.

How many USLM shares does Antoine M. Doumet hold after this Form 4?

After the reported transactions, Antoine M. Doumet holds 110,000 shares of USLM Common Stock directly. This figure reflects his position following the option exercise recorded on May 1, 2026 in the Form 4 filing.

What were the key terms of the USLM stock options exercised by Doumet?

The exercised USLM stock options covered 3,405 underlying Common Stock shares at an exercise price of $110.00 per share. They were exercised on May 1, 2026 and had an expiration date of May 1, 2036 before exercise.

Did Antoine M. Doumet sell any USLM shares in this Form 4 filing?

No sale transactions were reported. The Form 4 shows an exercise of stock options for 3,405 USLM Common Stock shares, increasing his holdings, but it does not include any open-market or other sales of those shares.

Is the USLM Form 4 transaction by Antoine M. Doumet a buy or sell signal?

The filing reflects an options exercise, categorized as acquiring 3,405 shares at $110.00 each. It shows an exercise-and-hold pattern without any reported share sales, which is typically viewed as routine compensation-related activity rather than a direct buy-or-sell signal.